<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <!--
    font-family:字体
    font-size:  字体大小
    font-weigt: 粗细
    color:      字体颜色
     -->
    <style>
        body {
            font-family: "Arial Black", 楷体;
            color: red;
        }

        h1 {
            font-size: 50px;
        }

        .p1 {
            font-weight: 600;
            color: gray;
        }
    </style>
</head>
<body>
<h1>标题</h1>
<p>正文11111</p>
<p class="p1">正文2222222</p>
<p>i love study java</p>
</body>
</html>